Re: Physics question, please help if you can

[Norfolk and Chance]

Jamie,

It's late so I'll let you do the sums but here's the formula..

divide weekly pay by the amount SWMBO will let you spend at one of our fine
modelling establishments:

Subract 10 quid from said amount:

Call a fine modelling establishment:

Order appropriate missing bits:

Factor in time saved not looking for missing bit

Add peace of mind knowing that bit shouldn't fail again (taking your lower
leg with it)

I reckon that's a reasonable solution...

:)


Andy

[Jamie]

Thanks guys, but the part isn't available in Australia at present. Not
bothered to buy it overseas either. If I can't find it I am just going to
put the heli back in the shed and leave it. Trying to cut down on the money
I spend on these things.

The paddles btw were a brand new set of FAI ones from a MA Tempest. Anyone
have a "spare"??

--
Regards

Jamie Wilson


"Norfolk and Chance" <no.spamthanks@btopenworld.com> wrote in message
news:c3dhb3$6vg$1@sparta.btinternet.com...
> Jamie,
>
> It's late so I'll let you do the sums but here's the formula..
>
> divide weekly pay by the amount SWMBO will let you spend at one of our
fine
> modelling establishments:
>
> Subract 10 quid from said amount:
>
> Call a fine modelling establishment:
>
> Order appropriate missing bits:
>
> Factor in time saved not looking for missing bit
>
> Add peace of mind knowing that bit shouldn't fail again (taking your lower
> leg with it)
>
> I reckon that's a reasonable solution...
>
> :)
>
>
> Andy
>
>

[crouisk]

if you go for a simple model and ignore wind resistance and spinning
and eal with first orders. etc etc its pretty easy.

The paddle has to drop 40cm under gravity - takes 2.8sec

It leaves the flybar travelling at 1000rpm at 25cm out which is about
26m/s

Thus it travels about 73m.
Happy hunting.

Scott

[Roy]

"crouisk" <scottwil5on@hotmail.com> wrote in message
news:1f42ecb0.0403190543.140df320@posting.google.c om...
> if you go for a simple model and ignore wind resistance and spinning
> and eal with first orders. etc etc its pretty easy.
>
> The paddle has to drop 40cm under gravity - takes 2.8sec
>

If you can drop an unmodified paddle 40 cm and make it take 2.8 seconds to
hit the deck, I'll send you £100.00
acceleration due to gravity 36feet per second, per second.

[crouisk]

sorry miscalculted the time its only 0.28 secs. letting it travel 7.5m

[Jamie]

Hmmm, well it went futher than 7.5m It must have got a lot of lift also.
Might start raking the sand. Might be just under.

--
Regards

Jamie Wilson


"crouisk" <scottwil5on@hotmail.com> wrote in message
news:1f42ecb0.0403190654.3b8729f9@posting.google.c om...
> sorry miscalculted the time its only 0.28 secs. letting it travel 7.5m

[Beav]

"Mike" <mikespruce99@aol.comnospam> wrote in message
news:20040318194907.08963.00001583@mb-m14.aol.com...
> Ah, the joys of wandering round looking for paddles... that takes me back
to my
> first helicopter, a Helibaby with aluminium paddles and a very short
thread
> holding them on (and no locktite in those days either!).
>
> The times I spent just looking for bits of heli that had fallen off.....
>
> anyway, no idea how you calculate it, and the word 'sand' is a bit
worrying..

Not as worrying as the word "looking". I think I'd forget that idea for two
reasons. One... if it's come off once, it could come off again, so it's
better where it is, and two... you could get one (or a pair even) delivered
to your door for less than a tenner. Now if it was a complete tailbox, then
it's a different story, but a paddle?? Let it rest in peace:-)

> if it has buried itself in sand it will be very difficult to find. I used
to
> pray to St Antony (Patron saint of lost things I think), and more often
than
> not I would find what was missing (and I'm in no way religious).
>
> I didn't find throwing an identical object of much use either, heli's do
it
> sooooo much better.

And matching every variable would be nigh on impossible. even one degree out
and the paddle coul be yards away from the place you're looking.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk